ABB DI810 3BSE008508R1 Digital Input Module
1. Product Introduction
The ABB DI810 3BSE008508R1 is a digital input module designed for ABB’s AC 800M control system. It offers reliable signal acquisition for a wide range of on/off process signals and is known for its robust performance in complex industrial automation environments. Built with high immunity to electrical noise and equipped with diagnostic capabilities, the DI810 ensures efficient, safe, and stable operation within distributed control systems (DCS).
2. Technical Specifications (Descriptive Format)
This module provides 16 digital inputs, supporting both 24 V DC signal levels and potential-free contact inputs. Each input channel features optical isolation to prevent ground loops and interference. The DI810 consumes a typical current of 120 mA from the I/O power supply and communicates via the ModuleBus interface with AC 800M controllers.
It operates in a temperature range from 0°C to +55°C, with storage capability down to –40°C, ensuring durability even in demanding industrial environments. The module’s response time is under 3 ms, offering real-time performance for critical automation processes.

3. Structure and Design
The DI810 consists of a compact printed circuit assembly with an easy plug-in mounting mechanism compatible with ABB’s S800 I/O system. A front-mounted terminal base allows for fast wiring and module replacement. Each input is individually isolated, and diagnostic LEDs are provided on the front panel for quick visual indication of channel status and power supply conditions.
4. Key Features
16-channel 24 V DC digital input module
Optical isolation between channels for reliable operation
Low power consumption and high noise immunity
Hot-swappable module for minimal downtime
Front diagnostic LEDs for easy maintenance
Compact design supporting modular expansion
Full compatibility with AC 800M controller family

5. Installation and Maintenance
When installing the ABB DI810, it should be mounted on a standard S800 I/O terminal base and connected to the ModuleBus network.
Verify correct polarity of 24 V DC connections.
Ensure proper shielding and grounding to minimize electromagnetic interference.
The module supports online replacement without powering down the system.
Periodic inspection of terminal connections and dust removal will enhance longevity.
In case of faults, the diagnostic indicators assist in identifying specific channel issues, enabling fast troubleshooting.
6. Application Fields
The DI810 module is used across various industrial applications requiring high-speed digital signal detection, including:
Power generation systems
Chemical and petrochemical plants
Oil and gas production units
Pulp and paper manufacturing
Water treatment facilities
Factory automation and machine control

7. Performance Benefits
The ABB DI810 3BSE008508R1 provides a combination of robust signal handling, reliability, and easy scalability. Its ability to perform under demanding conditions while maintaining data integrity makes it a cornerstone in industrial automation systems that demand precision and uptime.